| Karhula to Portage (Michigan) | 4,392.54 mi (7,069.12 km) |
| Karhula to Portage (Wisconsin) | 4,409.85 mi (7,096.96 km) |
| Karhula to Portales (New Mexico) | 5,317.34 mi (8,557.43 km) |
| Karhula to Porterville (California) | 5,490.94 mi (8,836.82 km) |
| Karhula to Portland (Maine) | 3,882.08 mi (6,247.60 km) |
| Karhula to Portland (Oregon) | 4,912.34 mi (7,905.65 km) |
| Karhula to Portland (Tennessee) | 4,753.76 mi (7,650.44 km) |
| Karhula to Portland (Texas) | 5,572.85 mi (8,968.64 km) |
| Karhula to Portsmouth (New Hampshire) | 3,931.80 mi (6,327.62 km) |
| Karhula to Portsmouth (Ohio) | 4,526.96 mi (7,285.44 km) |
| Karhula to Portsmouth (Virginia) | 4,452.29 mi (7,165.28 km) |
| Karhula to Post Falls (Idaho) | 4,689.78 mi (7,547.47 km) |
| Karhula to Potomac (Maryland) | 4,350.05 mi (7,000.74 km) |
| Karhula to Potomac Park (California) | 5,536.34 mi (8,909.87 km) |
| Karhula to Pottstown (Pennsylvania) | 4,233.56 mi (6,813.25 km) |
